Superior audio quality in a card that is expandable from two to twenty-four ports in a 2U form factor, the Sangoma A400 FXO/ FXS card is a high-density version of the popular A200 model.

For optimum echo-cancelled voice quality and enhancement, choose the A400D Model with Echo Cancellation Hardware. One DSP echo canceller on the A400D Base Card will support Telco-grade hardware echo cancellation on all channels, up to the cards maximum configuration in 24 ports with no additional CPU load.

To reach this configuration, simply add additional Remora cards to any base card in the A400 Series. A single PCI or PCI Express slot hosts the connection and ensures common synchronous clocking for all channels.

Like all the cards in the award-winning Sangoma AFT Series Product Line, the A400 and Remora systems architecture is shared with Sangomas A101, A102, A104, A108 and A200 cards, ensuring common 3.3 V or 5 V, high performance,

universal PCI or PCI Express compatibility, and crash-proof field upgradable firmware to take advantage of enhancements, as they become available.